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AQA Biology - GCSE > Hormones > Flashcards

Hormones Flashcards

To study the different types of hormones

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1
Q

Where is the hormone progesterone made?

A

Ovaries

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2
Q

What happens when there is too little water in the blood?

A

The hypothalamus detects this and causes the pituitary gland to release more ADH into the blood.

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3
Q

HIGHER BIOLOGY - how can auxins be used in agriculture?

A

* As weed killers * As rooting powders * For promoting growth in tissue culture

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4
Q

Where is the pituitary gland found?

A

In the brain

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5
Q

What are hormones made of?

A

Sicen hormones are proteins, they are made of amino acids

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6
Q

How are hormones moved aroud the body?

A

In the blood

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7
Q

Which hormones are found in fertility drugs?

A

FSH and LH

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8
Q

Where is the function (job) of the hormone glucagon?

A

Makes the liver covert glycogen into glucose

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9
Q

Which gland is which?

A

Diagram with answers:

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10
Q

Which is the target organ for the hormone thyroxine?

A

Most body tissues

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11
Q

Where is the hormone FSH made?

A

The pituitary gland

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12
Q

Where is the function (job) of the hormone FSH?

A

Causes an egg to mature in an ovary. Stimulates the ovaries to release oestrogen

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13
Q

What does LH stand for?

A

Luteinising Hormone

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14
Q

Which is the target organ for the hormone testosterone?

A

Male reproductive organs

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15
Q

Which is the target organ for the hormone progesterone?

A

The uterus and mammary glands

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16
Q

Where is the function (job) of the hormone LH?

A

Triggers ovulation (the release of a mature egg) from an ovary

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17
Q

Where is the function (job) of the hormone oestrogen?

A
  1. Stops production of FSH (so only 1 egg matures at a time)
  2. Repairs, thickens and maintains the uterus lining
  3. Stimulates the pituitary gland to release LH
  4. Causes secondary sexual characteristics
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18
Q

Which is the target organ for the hormone LH?

A

Ovaries

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19
Q

What happens when there is too little water in the blood?

A

The hypothalamus detects this and causes the pituitary gland to release more ADH into the blood.

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20
Q

What is the function (job) of the pituitary gland?

A

It is a ‘master gland’ which secretes several hormones into the blood in response to body conditions.

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21
Q

What happens when there are high ADH levels in the blood?

A
  • More water is resorbed by the (nephrones in the) kidneys back in to the blood.
  • This is an example of negative feedback.
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22
Q

Where is the hormone insulin made?

A

Pancreas (by beta cells)

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23
Q

What happens when there are high ADH levels in the blood?

A
  • More water is resorbed by the (nephrons in the) kidneys back in to the blood.
  • This is an example of negative feedback.
24
Q

Which organ system produces hormones?

A

The endocrine system

25
Q

What does ADH stand for?

A

Antidiuretic Hormone

26
Q

Where are all hormones made?

A

Glands

27
Q

Which is the target organ for the hormone FSH?

A

Ovaries

28
Q

Which is the target organ for the hormone ADH?

A

The kidneys

29
Q

Where is the function (job) of the hormone ADH?

A

Water retention by the kidneys

30
Q

What is a hormone?

A

A chemical messenger carried in the blood to target organs

31
Q

Where is the hormone glucagon made?

A

Pancreas (by alpha cells)

32
Q

Where is the function (job) of the hormone progesterone?

A

Maintains the lining of the uterus during the middle part of the menstrual cycle and during pregnancy.

33
Q

Which is the target organ for the hormone insulin?

A

Liver

34
Q

Where is the function (job) of the hormone insulin?

A

Makes the liver covert glucose into glycogen

35
Q

What does FSH stand for?

A

Follicle Stimulating Hormone

36
Q

Where is the hormone adrenaline made?

A

The adrenal glands (on top of the kidneys)

37
Q

Where is the hypothalamus found?

A

In the brain

38
Q

HIGHER BIOLOGY - What can gibberellins be used to do in plants?

A
  • Initiating seed germination
  • End seed dormancy
  • Promote flowering
  • Increase fruit size
39
Q

Which is the target organ for the hormone glucagon?

A

Liver

40
Q

Where is the function (job) of the hormone adrenaline?

A
  • Increases the heart rate.
  • Increases breathing rate.
  • Boosts the delivery of oxygen and glucose to the brain and muscles, preparing the body for ‘flight or fight’.
41
Q

Where is the function (job) of the hormone testosterone?

A
  1. Main male reproductive hormone
  2. Stimulates sperm production
  3. Causes secondary sexual characteristics
42
Q

Where is the hormone oestrogen made?

A

Ovaries

43
Q

Where is the hormone testosterone made?

A

The Testis

44
Q

Where is the hormone thyroxine made?

A

The thyroid gland

45
Q

Which is the target organ for the hormone adrenaline?

A

Heart; Lungs; muscles

46
Q

HIGHER BIOLOGY - how can auxins be used in agriculture?

A
  • As weed killers
  • As rooting powders
  • For promoting growth in tissue culture
47
Q

BIOLOGY - What are auxins?

A
  • They are plant hormones.
  • Made in the tips of the growing stems and roots (apical meristems)
  • Diffuse to other parts of the stems or roots.
48
Q

HIGHER BIOLOGY - What is ethen used for in plant Biology

A

Controls cell division and repening of fruit

49
Q

Which hormones are found in the oral contraceptive (the pill)?

A

Oestrogen or progesterone

50
Q

HIGHER BIOLOGY - What are gibberellins?

A
  • They are plant hormones
  • Responsible for growth and development, are important for initiating seed germination.
  • Low concentrations can be used to increase the speed of germination.
  • They stimulate cell elongation and cause plants to grow taller.
  • Naturally produced by seeds.
51
Q

Which is the target organ for the hormone oestrogen?

A

Female reproductive system

52
Q

Where is the hormone LH made?

A

The pituitary gland

53
Q

Where is the hormone ADH made?

A

The pituitary gland

54
Q

Where is the pituitary gland found?

A

In the brain

55
Q

BIOLOGY - What do auxins do in plants?

A
  • They control the growth of plants by promoting cell division and causing elongation in plant cells
  • Stems and roots respond differently to high concentrations of auxins: cells in stems grow more cells in roots grow less

AQA Biology - GCSE (2 decks)

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